Verified record · from the answer index
Check Digits
mcpofficialtested · static-verifiedscore 47/100signed passport ✓published 11d ago · verified 2026-08-08
Catch a mistyped barcode, ISBN, VIN, NPI or LEI before a bad identifier corrupts a record.
Install
claude mcp add Check Digits -- npx -y @toolstop/check-digits
registry:dev.toolstop/check-digits · published by toolstop · source repository